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Finding the Fourth Proportional to 159,324.34, 219,842.28 and 91,328.32

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Solution

The fourth proportional to 159,324.34, 219,842.28 and 91,328.32 is: 126,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,324.34 : 219,842.28 = 91,328.32 : x
  2. Step 2: Convert to fraction form
    159,324.34/219,842.28 = 91,328.32/x
  3. Step 3: Cross multiply
    159,324.34x = 219,842.28 × 91,328.32
  4. Step 4: Simplify right side
    159,324.34x = 20,077,826,097.37
  5. Step 5: Solve for x
    x = 20,077,826,097.37/159,324.34
  6. Step 6: Final answer
    x = 126,018.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.